目的BRCA1/2基因胚系变异按照风险等级分为5类,其中3类意义未明位点(variants of the uncertain significance,VUS)需要定期复核。探索变异证据的更新对变异分类的影响并指导携带有害VUS位点的患者进行临床诊疗。方法收集971例进行了BRC...目的BRCA1/2基因胚系变异按照风险等级分为5类,其中3类意义未明位点(variants of the uncertain significance,VUS)需要定期复核。探索变异证据的更新对变异分类的影响并指导携带有害VUS位点的患者进行临床诊疗。方法收集971例进行了BRCA1/2基因胚系检测的患者(乳腺或卵巢癌),筛选出VUS位点128个。整合人群频率数据库、疾病数据库、计算机软件预测、共分离证据、等位基因证据及人群队列研究等证据,重新分析这些VUS位点,明确变异分类是否发生改变。结果142例肿瘤患者携带BRCA1/2基因VUS位点,占14.6%(142/971),变异位点数为128个,其中错义突变、同义突变、框内非移码突变和非编码区突变的比例分别为70.3%、4.7%、3.1%、21.9%。重新复核分析发现11.7%(15/128)的VUS位点可降级为2类,疑似良性。结论随着胚系变异相关证据的不断更新,VUS位点经再次复核后变异分类可能会有所改变。展开更多
5-HT1A基因编码5-羟色胺(血清素)的G蛋白偶联受体(属于5-羟色胺受体亚家族)。C-1019G多态位点是5-HT1A基因启动子区一个重要的功能性多态位点,人群中存在3种基因型即CC、CG、GG,它与个体的恋爱关系及抑郁症、焦虑症等精神疾病密切相关...5-HT1A基因编码5-羟色胺(血清素)的G蛋白偶联受体(属于5-羟色胺受体亚家族)。C-1019G多态位点是5-HT1A基因启动子区一个重要的功能性多态位点,人群中存在3种基因型即CC、CG、GG,它与个体的恋爱关系及抑郁症、焦虑症等精神疾病密切相关。本文对5-HT1A基因C-1019G多态位点的相关机制、检测方法、研究进展等进行综述。The 5-HT1A gene encodes a G protein-coupled receptor for serotonin, which belongs to the 5-hydroxytryptamine receptor subfamily. C-1019G polymorphism is an important functional poly-morphism in the promoter region of 5-HT1A gene. There are three genotypes (CC, CG and GG) in the population, which are closely related to individual’s romantic relationship and mental disorders such as depression and anxiety. In this paper, the mechanism, detection methods and research progress of C-1019G polymorphism of 5-HT1A gene were reviewed.展开更多
目的从基因水平探讨湖北地区汉族人食管癌 HEN-DQB1等位基因的遗传易感性.方法运用序列特异性引物聚合酶链反应技术,检测无亲缘关系湖北汉族健康人136例、食管癌组42例患者的 HLA-DQB1等位基因.SAS system 统计软件数据处理.结果湖北汉...目的从基因水平探讨湖北地区汉族人食管癌 HEN-DQB1等位基因的遗传易感性.方法运用序列特异性引物聚合酶链反应技术,检测无亲缘关系湖北汉族健康人136例、食管癌组42例患者的 HLA-DQB1等位基因.SAS system 统计软件数据处理.结果湖北汉族人食管癌患者与正常人比较,HEN-DQB1*0301基因频率显著增高(0.2976 vs 0.1875),P=0.046,OR=1.835,病因分数=0.1354);两组间 HLA-DQB1其余各等位基因分布频率的比较,HLA-DQB1*0201(0.0833 vs 0.1016),*0301(0.2976 vs 0.1875),*0302(0.0595 vs 0859),*0303(0.2381 vs 0.1875),*0304(0.0000 vs 0.0039),*0401(0.0714 vs 0.0469),*0402(0.0119 vs 0.0156),*0501(0.0357 vs 0.0703),*0502(0.0595 vs 0.0664),*0503(0.0119 vs 0.0195),*0504(0.0000 vs 0.0039),*0601(0.0595 vs 0.0781),*0602(0.0476 vs 0.0742),*0603(0.0000 vs 0.0078),*0604(0.0238 vs 0.0508),差异均无显著性.结论 HLA-DQB1*0301等位基因与湖北汉族人食管癌正关联,为其易感基因.展开更多
文摘目的BRCA1/2基因胚系变异按照风险等级分为5类,其中3类意义未明位点(variants of the uncertain significance,VUS)需要定期复核。探索变异证据的更新对变异分类的影响并指导携带有害VUS位点的患者进行临床诊疗。方法收集971例进行了BRCA1/2基因胚系检测的患者(乳腺或卵巢癌),筛选出VUS位点128个。整合人群频率数据库、疾病数据库、计算机软件预测、共分离证据、等位基因证据及人群队列研究等证据,重新分析这些VUS位点,明确变异分类是否发生改变。结果142例肿瘤患者携带BRCA1/2基因VUS位点,占14.6%(142/971),变异位点数为128个,其中错义突变、同义突变、框内非移码突变和非编码区突变的比例分别为70.3%、4.7%、3.1%、21.9%。重新复核分析发现11.7%(15/128)的VUS位点可降级为2类,疑似良性。结论随着胚系变异相关证据的不断更新,VUS位点经再次复核后变异分类可能会有所改变。
文摘5-HT1A基因编码5-羟色胺(血清素)的G蛋白偶联受体(属于5-羟色胺受体亚家族)。C-1019G多态位点是5-HT1A基因启动子区一个重要的功能性多态位点,人群中存在3种基因型即CC、CG、GG,它与个体的恋爱关系及抑郁症、焦虑症等精神疾病密切相关。本文对5-HT1A基因C-1019G多态位点的相关机制、检测方法、研究进展等进行综述。The 5-HT1A gene encodes a G protein-coupled receptor for serotonin, which belongs to the 5-hydroxytryptamine receptor subfamily. C-1019G polymorphism is an important functional poly-morphism in the promoter region of 5-HT1A gene. There are three genotypes (CC, CG and GG) in the population, which are closely related to individual’s romantic relationship and mental disorders such as depression and anxiety. In this paper, the mechanism, detection methods and research progress of C-1019G polymorphism of 5-HT1A gene were reviewed.
文摘目的从基因水平探讨湖北地区汉族人食管癌 HEN-DQB1等位基因的遗传易感性.方法运用序列特异性引物聚合酶链反应技术,检测无亲缘关系湖北汉族健康人136例、食管癌组42例患者的 HLA-DQB1等位基因.SAS system 统计软件数据处理.结果湖北汉族人食管癌患者与正常人比较,HEN-DQB1*0301基因频率显著增高(0.2976 vs 0.1875),P=0.046,OR=1.835,病因分数=0.1354);两组间 HLA-DQB1其余各等位基因分布频率的比较,HLA-DQB1*0201(0.0833 vs 0.1016),*0301(0.2976 vs 0.1875),*0302(0.0595 vs 0859),*0303(0.2381 vs 0.1875),*0304(0.0000 vs 0.0039),*0401(0.0714 vs 0.0469),*0402(0.0119 vs 0.0156),*0501(0.0357 vs 0.0703),*0502(0.0595 vs 0.0664),*0503(0.0119 vs 0.0195),*0504(0.0000 vs 0.0039),*0601(0.0595 vs 0.0781),*0602(0.0476 vs 0.0742),*0603(0.0000 vs 0.0078),*0604(0.0238 vs 0.0508),差异均无显著性.结论 HLA-DQB1*0301等位基因与湖北汉族人食管癌正关联,为其易感基因.
